Go to the folder library and find the newest file in there.Move the folders \DCCache & \DCBackup to the desktop.You can also try this method which will usually install the lot on the first try If the lot did not get in installed properly, install it again and check if the file is there. If it’s missing, the lot will not show in your game. Check the list below for the file name of the lot that should be in the \library folder. If you have reached the launcher cap, the lots sometimes are not installed correctly the first time.
If you’ve bought the lot with the Gold Edition of a world, they are not pre-placed. L’ve installed a lot from the Sims 3 Store but I can’t find the lot in-game.